The boss is the Jaguar. He is almost 16" so not many try him yet. No real problems with aggression in the tank. The key is a bit of overcrowding, which eliminates territories. We will see though as the Dovies grow as well I have a African in the tank (dont remember his name but I believe he can get to 19" and he has been growing like a weed) 10" in 7 months.warren126;1051954; said:which one is the boss of your first tank and nice front